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  <title>注销每个 tick 上需要执行的函数</title>
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  <div id="layout-content"><div id="function.unregister-tick-function" class="refentry">
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  <h1 class="refname">unregister_tick_function</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.0.3, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">unregister_tick_function</span> &mdash; <span class="dc-title">注销每个 tick 上需要执行的函数</span></p>

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 <div class="refsect1 description" id="refsect1-function.unregister-tick-function-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>unregister_tick_function</strong></span>(<span class="methodparam"><span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> <code class="parameter">$callback</code></span>): <span class="type"><span class="type void">void</span></span></div>

  <p class="simpara">
   注销函数 <code class="parameter">function</code>，以便在调用 <a href="control-structures.declare.html" class="link">tick</a> 时不再执行。
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.unregister-tick-function-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">callback</code></dt>

     <dd>

      <p class="para">
       要注销的函数。
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.unregister-tick-function-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   没有返回值。
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.unregister-tick-function-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.register-tick-function.html" class="function" rel="rdfs-seeAlso">register_tick_function()</a> - 注册一个函数以便在每个 tick 上执行</span></li>
   </ul>
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